Every thread I've seen with people linking sites that carry 1/2" SS flanges no longer works. Turbo-Flanges.com has the style I'd like (oval ports milled to round with reliefs for the runners) but they only offer it in mild steel with reliefs for 1.25" sch pipe. I'm going to be using 1.5".

I understand it's not that difficult to crush pipe to fit an oval port flange but I'd rather not do it if I don't have to.

Thoughts? Or any builders willing to sell me one of their proprietary flanges?

 

Pretty sure you are going to have to buy several to get some custom made. PRL Motorposrqts can do it, probably a minimum of 5 required and I have no clue what they would charge.